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From: Like Xu <like.xu.linux@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>, Jim Mattson <jmattson@google.com>
Cc: Sean Christopherson <seanjc@google.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Joerg Roedel <joro@8bytes.org>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/4] KVM: x86/pmu: An insightful refactoring of vPMU code
Date: Tue, 16 Nov 2021 20:20:26 +0800	[thread overview]
Message-ID: <20211116122030.4698-1-likexu@tencent.com> (raw)


This patch set is essentially triggered by Jim's patch set[1]
(especially patch 01 and 04).

The new idea to set up and maintain pmc->eventsel for fixed counters.
This would unify all fixed/gp code logic based on the same semantics
"pmc->eventse". (I demonstrated this in patch 01-03, more can be done)

[1] https://lore.kernel.org/kvm/96170437-1e00-7841-260e-39d181e7886d@gmail.com/T/#t

Please check each commit message for more details
and let me know if there is any room for improvement,


Like Xu (4):
  KVM: x86/pmu: Setup pmc->eventsel for fixed PMCs
  KVM: x86/pmu: Refactoring find_arch_event() to find_perf_hw_id()
  KVM: x86/pmu: Reuse find_perf_hw_id() and drop find_fixed_event()
  KVM: x86/pmu: Refactoring kvm_perf_overflow{_intr}()

 arch/x86/kvm/pmu.c           | 74 ++++++++++++++++++------------------
 arch/x86/kvm/pmu.h           |  4 +-
 arch/x86/kvm/svm/pmu.c       | 19 ++++-----
 arch/x86/kvm/vmx/pmu_intel.c | 54 +++++++++++++++++---------
 4 files changed, 83 insertions(+), 68 deletions(-)


             reply	other threads:[~2021-11-16 12:21 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-16 12:20 Like Xu [this message]
2021-11-16 12:20 ` [PATCH 1/4] KVM: x86/pmu: Setup pmc->eventsel for fixed PMCs Like Xu
2021-11-16 12:20 ` [PATCH 2/4] KVM: x86/pmu: Refactoring find_arch_event() to find_perf_hw_id() Like Xu
2021-11-18 13:29   ` Paolo Bonzini
2021-11-16 12:20 ` [PATCH 3/4] KVM: x86/pmu: Reuse find_perf_hw_id() and drop find_fixed_event() Like Xu
2021-11-18 14:43   ` Paolo Bonzini
2021-11-18 15:00   ` Paolo Bonzini
2021-11-19  7:16     ` Like Xu
2021-11-19 10:29       ` Paolo Bonzini
2021-11-19 11:10         ` Like Xu
2021-11-16 12:20 ` [PATCH 4/4] KVM: x86/pmu: Refactoring kvm_perf_overflow{_intr}() Like Xu
2021-11-18 14:53   ` Paolo Bonzini

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